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  <defs>
    <linearGradient id="bg" x1="0%" y1="0%" x2="100%" y2="100%">
      <stop offset="0%" stop-color="#3b82f6"/>
      <stop offset="100%" stop-color="#06b6d4"/>
    </linearGradient>
  </defs>
  <rect width="128" height="128" rx="28" fill="url(#bg)"/>
  <text
    x="64"
    y="94"
    font-family="system-ui, -apple-system, 'Segoe UI', Arial, sans-serif"
    font-size="84"
    font-weight="800"
    fill="white"
    text-anchor="middle"
    letter-spacing="-2"
  >N</text>
</svg>
